Solar-powered plane to take cross-country flight

June 24, 2014

Niels Ackermann/Solar Impulse

44of58

Engineers position a wing of the Solar Impulse inside the belly of Boeing 747 in Payerne, Switzerland in February 2013. The plane was flown to California, where it is now preparing to make a cross-country flight.

Niels Ackermann/Solar Impulse

44of58

Engineers position a wing of the Solar Impulse inside the belly of Boeing 747 in Payerne, Switzerland in February 2013. The plane was flown to California, where it is now preparing to make a cross-country flight.